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Quick questions on Comparing data: the five-figure summary, quartiles and boxplots - SQA National 5 Maths

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Find the median of 2,5,7,9,112, 5, 7, 9, 11. [1 mark]
What is q2?
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Find the IQR of the summary min 44, Q1=6Q_1 = 6, median 99, Q3=13Q_3 = 13, max 1818. [1 mark]
What is q3?
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Set X has median 4040, IQR 55; Set Y has median 4040, IQR 1212. Compare them. [2 marks]

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